I have been checking out the Worcester Greenstar range and whilst I will get a proper Corgi guy in to fit it I would like to know how to work out what size boiler. There are a couple of web sites that provide a calculator and they tell me around 14.5KW.
I know I can check my curent one but I have added a loft conversion with 2 rooms. The current boiler seems to cope well so I guess I could just use that size. Is it true that too big a boiler is as inefficient as one that is too small ?
Oh, I have an unvented presserised system. Does this change my type of boiler ?
I know I can check my curent one but I have added a loft conversion with 2 rooms. The current boiler seems to cope well so I guess I could just use that size. Is it true that too big a boiler is as inefficient as one that is too small ?
Oh, I have an unvented presserised system. Does this change my type of boiler ?